52111572 has 12 divisors (see below), whose sum is σ = 121593696. Its totient is φ = 17370520.

The previous prime is 52111567. The next prime is 52111621. The reversal of 52111572 is 27511125.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×52111572² = 5431231872622368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2171304 + ... + 2171327.

It is an arithmetic number, because the mean of its divisors is an integer number (10132808).

Almost surely, 2^52111572 is an apocalyptic number.

It is an amenable number.

52111572 is an abundant number, since it is smaller than the sum of its proper divisors (69482124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52111572 is a wasteful number, since it uses less digits than its factorization.

52111572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342638 (or 4342636 counting only the distinct ones).

The product of its digits is 700, while the sum is 24.

The square root of 52111572 is about 7218.8345319726. The cubic root of 52111572 is about 373.5178760962.

Adding to 52111572 its reverse (27511125), we get a palindrome (79622697).

The spelling of 52111572 in words is "fifty-two million, one hundred eleven thousand, five hundred seventy-two".